CN102634798B - Dry-type enameling method for cast iron enameling stove - Google Patents
Dry-type enameling method for cast iron enameling stove Download PDFInfo
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- CN102634798B CN102634798B CN201210143891.7A CN201210143891A CN102634798B CN 102634798 B CN102634798 B CN 102634798B CN 201210143891 A CN201210143891 A CN 201210143891A CN 102634798 B CN102634798 B CN 102634798B
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Abstract
The invention relates to a dry-type enameling method for a cast iron enameling stove. The dry-type enameling method is characterized by comprising the following steps of: 1) uniformly coating base glazes on inner and outer surfaces of a pot body made of cast iron; 2) placing the pot body with the base glazes in a drying furnace and drying for 20-25 minutes; 3) placing the dried pot body in four warm areas in a sintering furnace for uniformly sintering, and advancing at constant speed in the sintering furnace; 4) scattering dry enameling cover glaze powder when the temperature is above 765 DEG C; 5) sending a semi-finished product obtained in the step 4) to the four warm areas in the sintering furnace for uniformly sintering, and advancing at constant speed in the sintering furnace; and 6) naturally cooling to room temperature and finishing the enameling process. Compared with a traditional enameling product, the cast iron enameling stove has the advantages of better heat conductivity, high temperature resistance, corrosion resistance and uniform heat transfer, does not generate excessive heating waste gas during heating process, meets health standard and is easily cleaned. Besides, the dry type enameling method for the cast iron enameling stove has the advantages of simple process, automatic operation, small labor intensity, high working efficiency and the like.
Description
Technical field
The invention belongs to casting iron range technical field, particularly relate to a kind of dry type enamel method of cast iron enamel kitchen range.
Background technology
At present, the kitchen range of selling on the market, mostly being stainless steel, glass, non-precious metal material makes, as stainless steel dishware, toughened glass stove and accessory and common iron pan, this its weak point of class formation kitchen range is: one, dangerous, unhygienic, product easily broken, easily get rusty, oxidizable, the food in culinary art directly contacts with metal, does not meet food sanitation requirement; Two, contaminate environment, waste resource, easily slow because conducting heat, and produce unnecessary heat exhaust gases, it is difficult to clean; Three, of poor quality, product is acid and alkali-resistance, non-refractory not; Four, cost is high, and pot body starting material are had relatively high expectations, and adds heavy user's economical load.
Well-known enamel has good can prevent metal rusting, makes metal when being heated, be unlikely to the erosion that forms zone of oxidation and can resist various liquid on surface.Enamelware is safety non-toxic not only, be easy to washing clean, can be widely used as the ware and the washing implement that in daily life, use, and under given conditions, the premium propertiess such as high, high temperature resistant, the wear-resisting and insulating effect of hardness that the enamel application of slip shows on metal body, make enamelware have purposes more widely.
Enamel product generally all adopts traditional wet method or dry process at present.It is not so high due to tradition, enamel technology being required, and just some quote utensil and container.Adopt now traditional enamel method to manufacture resistant to elevated temperatures kitchen range or earth pot, frying pan etc., there will be for a long time crackled glaze phenomenon, after crackled glaze, not only affect appearance effect, affect especially the use of product, especially in crackled glaze position, easily form iron rust, affect people's healthy diet.
Enamel dry process flow process in prior art: single dry process: board with enamel panel layer base-punching-polishing surface treatment-electrostatic painting-burn till-frame up.Technique is comparatively simple, can not meet the demand of requirements at the higher level.
Summary of the invention
The present invention for solve the technical problem existing in known technology provide a kind of technique simple, improve product work-ing life, avoid the dry type enamel method of the cast iron enamel kitchen range that use for a long time crackled glaze phenomenon.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is:
A dry type enamel method for cast iron enamel kitchen range, is characterized in that: described enamel method mainly comprises the following steps:
(1), bottoming glaze: the surfaces externally and internally at the pot body being formed by cast iron manufacture evenly applies ground-coat enamel, and the thickness of described ground-coat enamel is 0.12 ~ 0.14mm;
(2), dry: step 1 is placed on gently and is dried on bracket with the pot body of ground-coat enamel, oven dry bracket is placed in stoving oven, the temperature control of described stoving oven is divided into cold zone and high-temperature zone, 100 ℃ ~ 120 ℃ of the temperature of described cold zone; 120 ℃ ~ 150 ℃ of the temperature of described high-temperature zone, the described pot body with ground-coat enamel is dried 20 ~ 25 minutes in stoving oven;
(3), ground-coat enamel sintering: the pot body after step 2 is dried is placed on sintering bracket, sintering bracket is placed on to sintering in sintering oven, and at the uniform velocity advances in sintering oven, and the speed of travel is 0.7 ~ 0.8m/ minute; Described sintering oven is divided into four warm areas, and the temperature of the first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of the second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 770 ℃ ~ 775 ℃;
(4), spread cover-coat enamel dry powder: in sintering oven out, in temperature, when more than 765 ℃, on the pot body after sintering, evenly sprinkle cover-coat enamel dry powder, now the thickness of dry powder is 0.3mm ~ 0.4mm;
(5), finished product sintering: step 4 work in-process are out sent into and carried out sintering in sintering oven, and at the uniform velocity advance in sintering oven, the speed of travel is 0.5 ~ 0.7m/ minute; Described sintering oven is divided into four warm areas, and the temperature of the first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of the second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 768 ℃ ~ 773 ℃;
(6), naturally cool to room temperature, complete enamel process.
The advantage that the present invention has with positively effect is: because the present invention adopts the produced enamel product of above-mentioned technological process, have better heat conductivity compared with traditional enamel product, high temperature resistant, corrosion-resistant, conduct heat evenly, in heat-processed, can not produce more than heat exhaust gases, meet health standards, and be easy to the advantages such as cleaning, long service life.The present invention has that technique is simple in addition, automated job, labour intensity are little, working efficiency advantages of higher.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, be described in detail as follows:
A dry type enamel method for cast iron enamel kitchen range, mainly comprises the following steps:
(1), bottoming glaze: the surfaces externally and internally at the pot body being formed by cast iron manufacture evenly applies ground-coat enamel, and the thickness of described ground-coat enamel is 0.12 ~ 0.14mm; Pot body in this step is to adopt iron casting to form, and well-known cast iron is useful to human body when being applied to kitchen range, and the pot body that casting forms is the pot body completing through operations such as casting, machinings, avoids like this occurring inhomogeneous problem when bottoming glaze.
(2), dry: step 1 is placed on gently and is dried on bracket with the pot body of ground-coat enamel, oven dry bracket is placed in stoving oven, the temperature control of described stoving oven is divided into cold zone and high-temperature zone, 100 ℃ ~ 120 ℃ of the temperature of described cold zone; 120 ℃ ~ 150 ℃ of the temperature of described high-temperature zone, the described pot body with ground-coat enamel is dried 20 ~ 25 minutes in stoving oven; The main purpose of this step is the ground-coat enamel of accomplishing fluently to be well attached to the outside surface of pot body, if find that there is that ground-coat enamel comes off or obviously inhomogeneous, should return to first step and again supplement ground-coat enamel.
(3), ground-coat enamel sintering: the pot body after step 2 is dried is placed on sintering bracket, sintering bracket is placed on to sintering in sintering oven, and at the uniform velocity advances in sintering oven, and the speed of travel is 0.7 ~ 0.8m/ minute; Described sintering oven is divided into four warm areas, and the temperature of the first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of the second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 770 ℃ ~ 775 ℃; This step emphasis is the sintering to ground-coat enamel, and this step is the key of laying foundation, if gone wrong in this step, will directly affect next step the adhering to of cover-coat enamel, and therefore this step should strictly be controlled temperature range and the rate of advance in sintering oven.
(4), spread cover-coat enamel dry powder: in sintering oven out, in temperature, when more than 765 ℃, on the pot body after sintering, evenly sprinkle cover-coat enamel dry powder, now the thickness of dry powder is 0.3mm ~ 0.4mm; This step is the key of enamel product outer surface smoother, generally adopts 80 object vibratory screening apparatuss to spread dry powder, guarantees like this uniformity coefficient, guarantees the qualification rate of product.
(5), finished product sintering: step 4 work in-process are out sent into and carried out sintering in sintering oven, and at the uniform velocity advance in sintering oven, the speed of travel is 0.5 ~ 0.7m/ minute; Described sintering oven is divided into four warm areas, and the temperature of the first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of the second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 768 ℃ ~ 773 ℃; This step emphasis is the sintering to cover-coat enamel, this step is the key that finished product, is also the step that can reflect conforming product rate, if gone wrong in this step, that disqualification rate will rise, and therefore this step should strictly be controlled temperature range and the rate of advance in sintering oven.To improve the qualification rate of product.
(6), naturally cool to room temperature, complete enamel process.
The present invention has better heat conductivity compared with traditional enamel product, high temperature resistant, corrosion-resistant, conduct heat evenly, in heat-processed, can not produce more than heat exhaust gases, meets health standards, and is easy to the advantages such as cleaning, long service life.The present invention has that technique is simple in addition, automated job, labour intensity are little, working efficiency advantages of higher.
Claims (1)
1. a dry type enamel method for cast iron enamel kitchen range, is characterized in that: described enamel method mainly comprises the following steps:
(1), bottoming glaze: the surfaces externally and internally at the pot body being formed by cast iron manufacture evenly applies ground-coat enamel, and the thickness of described ground-coat enamel is 0.12 ~ 0.14mm;
(2), dry: step 1 is placed on gently and is dried on bracket with the pot body of ground-coat enamel, oven dry bracket is placed in stoving oven, the temperature control of described stoving oven is divided into cold zone and high-temperature zone, 100 ℃ ~ 120 ℃ of the temperature of described cold zone; 120 ℃ ~ 150 ℃ of the temperature of described high-temperature zone, the described pot body with ground-coat enamel is dried 20 ~ 25 minutes in stoving oven;
(3), ground-coat enamel sintering: the pot body after step 2 is dried is placed on sintering bracket, sintering bracket is placed on to sintering in sintering oven, and at the uniform velocity advances in sintering oven, and the speed of travel is 0.7 ~ 0.8m/ minute; Described sintering oven is divided into four warm areas, and the temperature of the first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of the second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 770 ℃ ~ 775 ℃;
(4), spread cover-coat enamel dry powder: in sintering oven out, in temperature, when more than 765 ℃, on the pot body after sintering, evenly sprinkle cover-coat enamel dry powder, now the thickness of dry powder is 0.3mm ~ 0.4mm;
(5), finished product sintering: step 4 work in-process are out sent into and carried out sintering in sintering oven, and at the uniform velocity advance in sintering oven, the speed of travel is 0.5 ~ 0.7m/ minute; Described sintering oven is divided into four warm areas, and the temperature of the first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of the second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 768 ℃ ~ 773 ℃;
(6), naturally cool to room temperature, complete enamel process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210143891.7A CN102634798B (en) | 2012-05-10 | 2012-05-10 | Dry-type enameling method for cast iron enameling stove |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210143891.7A CN102634798B (en) | 2012-05-10 | 2012-05-10 | Dry-type enameling method for cast iron enameling stove |
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| CN102634798A CN102634798A (en) | 2012-08-15 |
| CN102634798B true CN102634798B (en) | 2014-05-07 |
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| CN201210143891.7A Expired - Fee Related CN102634798B (en) | 2012-05-10 | 2012-05-10 | Dry-type enameling method for cast iron enameling stove |
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| CN104404515B (en) * | 2014-10-28 | 2017-08-04 | 揭阳市库伟实业有限公司 | Preparation method and oven for the enamel sheet metal component of oven |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250702A (en) * | 2008-03-03 | 2008-08-27 | 江阴硅普搪瓷有限公司 | Method for baking enamel of macrotype glassed steel equipment with energy-saving type glassed steel enamel coating enamel |
| CN102051617A (en) * | 2010-12-24 | 2011-05-11 | 洪立业 | Production process of enamel steel plate |
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2012
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250702A (en) * | 2008-03-03 | 2008-08-27 | 江阴硅普搪瓷有限公司 | Method for baking enamel of macrotype glassed steel equipment with energy-saving type glassed steel enamel coating enamel |
| CN102051617A (en) * | 2010-12-24 | 2011-05-11 | 洪立业 | Production process of enamel steel plate |
Non-Patent Citations (1)
| Title |
|---|
| 闻瑞斌等.干法涂搪用面釉.《搪瓷技术》.轻工业出版社,1987,252. * |
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